jsr303 validation on a getMethod that throws an exception

Question

I have the following method

public class Invoice
{
    public String currency="USD";

    @NoNull
    public BigDecimal getTotal()
    {
        if ("USD".equals(this.currency))
           throw new IllegalArgumentException();
        else
           return new BigDecimal("1.00");
    }
}

The code throws an IllegalArgumentException() when I run it, which is fine. However, when I run a validation test, the checker crashes and throws a ValidationException. I would like to test to continue and report the method that throws exception as failing the validation test. As it stands, any method that throws an exception crashes the validation checker.

The validation checker is

Validator validator = Validation.buildDefaultValidatorFactory().getValidator();
Set<ConstraintViolation<Invoice>> violations = validator.validate(this);

and it throws:

javax.validation.ValidationException: Unable to access getTotal
    at org.hibernate.validator.util.ReflectionHelper.getValue(ReflectionHelper.java:303)
    at org.hibernate.validator.metadata.MetaConstraint.getValue(MetaConstraint.java:143)
    at org.hibernate.validator.engine.ValidatorImpl.validateConstraint(ValidatorImpl.java:325)
    at org.hibernate.validator.engine.ValidatorImpl.validateConstraintsForRedefinedDefaultGroup(ValidatorImpl.java:273)
    at org.hibernate.validator.engine.ValidatorImpl.validateConstraintsForCurrentGroup(ValidatorImpl.java:256)
    at org.hibernate.validator.engine.ValidatorImpl.validateInContext(ValidatorImpl.java:210)
    at org.hibernate.validator.engine.ValidatorImpl.validate(ValidatorImpl.java:119)
    at com.salesfront.core.client.model.proxies.Invoice.getValidationErrors(Invoice.java:198)
    at com.salesfront.core.client.model.proxies.AccountingValidation.ValidateAccount(AccountingValidation.java:37)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:606)
    at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:44)
    at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)
    at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:41)
    at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:20)
    at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:76)
    at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:50)
    at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193)
    at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52)
    at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191)
    at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42)
    at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184)
    at org.junit.runners.ParentRunner.run(ParentRunner.java:236)
    at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:50)
    at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:467)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:390)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:197)
Caused by: java.lang.reflect.InvocationTargetException
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:606)
    at org.hibernate.validator.util.ReflectionHelper.getValue(ReflectionHelper.java:297)
    ... 30 more
Caused by: java.lang.IllegalArgumentException
    at com.salesfront.core.client.model.proxies.Invoice.getTotal(Invoice.java:148)
    ... 35 more

Answer 1

It is possible that the reason why the validation checker crashes is because the exception thrown in your code is never caught. If you surrounded your code with a try/throw/catch block that specifically caught the exception and did something with it then that might fix your problem.